2,3-Diaminobenzoic acid is primarily utilized in the synthesis of various heterocyclic compounds, which are important in the development of pharmaceuticals and agrochemicals. It serves as a key intermediate in the production of benzimidazole derivatives, which exhibit a wide range of biological activities, including antimicrobial, antifungal, and anticancer properties. Additionally, this compound is employed in the preparation of dyes and pigments due to its ability to form stable complexes with metal ions, enhancing color fastness and intensity. In research, it is also used as a building block for the development of novel organic materials and coordination polymers, which have potential applications in catalysis and material science.